import numpy as np
from matplotlib import pyplot as plt
from matplotlib import animation

fig,ax = plt.subplots()

x = np.arange(0,2*np.pi,0.01)
line,=ax.plot(x,np.sin(x))

def animate(i):
    line.set_ydata(np.sin(x+i/10))
    
    
def init():
    line.set_ydata(np.sin(x))
    return line,

ani = animation.FuncAnimation(fig=fig,func=animate,frames=100,init_func=init,interval=20,blit=False)
    
plt.show()
